How does N-number availability work?

The FAA reserves N-numbers on request for $10. The pool is a finite alphanumeric set governed by 14 CFR §47.15. GroundScholar Registry checks the FAA registry plus our snapshot to estimate availability.

Why are some letters never used?

The letters I and O are excluded across the FAA tail format because they look like the digits 1 and 0. The first character after N also cannot be 0.

How are alternatives ranked?

A deterministic score combines edit distance, QWERTY keyboard proximity, phonetic equivalence, and digit-vs-letter character class. No language model is involved.

Will GroundScholar reserve the tail for me?

Concierge reservation is on the way. Join the waitlist below; you'll be notified when the service ships.

Vanity N-number availability checker

Check whether an FAA vanity N-number is available. If it is taken, GroundScholar Registry suggests close alternatives ranked by edit distance, keyboard proximity, phonetic similarity, and digit-letter pattern. No language model — the score is fully deterministic.

FAQ

How does N-number availability work?: The FAA reserves N-numbers on request for $10. The pool is a finite alphanumeric set governed by 14 CFR §47.15. GroundScholar Registry checks the FAA registry plus our snapshot to estimate availability.
Why are some letters never used?: The letters I and O are excluded across the FAA tail format because they look like the digits 1 and 0. The first character after N also cannot be 0.
How are alternatives ranked?: A deterministic score combines edit distance, QWERTY keyboard proximity, phonetic equivalence, and digit-vs-letter character class. No language model is involved.
Will GroundScholar reserve the tail for me?: Concierge reservation is on the way. Join the waitlist below; you'll be notified when the service ships.

Sources

FAA N-Number Inquiry — accessed 2026-04-28
14 CFR §47.15 — Registration numbers — accessed 2026-04-28

Vanity N-number availability checker

FAQ

How does N-number availability work?: The FAA reserves N-numbers on request for $10. The pool is a finite alphanumeric set governed by 14 CFR §47.15. GroundScholar Registry checks the FAA registry plus our snapshot to estimate availability.
Why are some letters never used?: The letters I and O are excluded across the FAA tail format because they look like the digits 1 and 0. The first character after N also cannot be 0.
How are alternatives ranked?: A deterministic score combines edit distance, QWERTY keyboard proximity, phonetic equivalence, and digit-vs-letter character class. No language model is involved.
Will GroundScholar reserve the tail for me?: Concierge reservation is on the way. Join the waitlist below; you'll be notified when the service ships.

Sources

FAA N-Number Inquiry — accessed 2026-04-28
14 CFR §47.15 — Registration numbers — accessed 2026-04-28